Incenerator.



APPLICATIO BEST.

ERATOR.

ED MAY 4,191'8. 1,881,488. Patented 0015.151918.

2 SHEETS-SHEET 2.

By MM I ATTR/VEY citizen of the United States, and a residenty in.' iran errar :f

WILLIAM N. BEST, OF BROOKLYN, NEW YORK.

INCINERATOR.

Application led May 4, 1918.

To all whom it may concern.'

Be it known that I, W1LLIAMN- BEST, a

of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Incinerators, of which the following is a speciticag tion.

My invention is an incinerator for use in the burning of objects or articles which, by reason of the large percentage of moisture therein or for other reasons, do not produce suflicient heat of combustion to permit the burning thereof without the application of heat from a separate source. My improved incinerator in its preferred form is particularly adapted for the burning of garbage but various other materials or substances may be burned therein, suitable alterations in details of construction being made if found desirable in burning some objects, such for instance, as corpses.

One object of my invention is to insure the complete combustion of the gases and odor bearing distillates so that the final gaseous product is substantially without odor. A further object is to more effectively support the material t0 be burned, permit the upward circulation of air therethrough, and burn the material from the top downwardly. Many of the advantages of my improved construction will be apparent rom a consideration of a preferred embodiment thereof which is illustrated in the accompanying drawings. p

In these drawings:

Figure 1 is a central, vertical, longitudinal section through an incinerator embodying my invention.

-F ig. 2 is a vertical transverse section taken substantially on the line 2 2 of Fig. 1, and

Fig. 3 is a horizontal section taken on the line 3 3 of Fig. 1.

In my improved construction I provide a main combustion chamber 10, the bottom wall or oor of which may be constructed of any suitable form of grate bars 11, which will permit the upward draft of air therebetween and which will properly support the material to be burned. The lower portions of the sides of the chamber are preferably Iformed of reticulated plates 12, through which air may also pass. lThe other walls of the combustion chamber may be of firebrick or any other suitable material and may in part go to make up a main casing 13 re- Specication of Letters Patent.

Patented Oct. 15, 1918.

Serial N o. 232,434.

inforced by an outer metallic skeleton frame, if desired or found necessary. Through one end wall of this outer casing I provide a chute 11 leading to the combustion chamber and preferably inclined at an angle so that material deposited within the chute may move, partly by gravity, into the combustion Chamber. This chute may have a metal lining and is closed at its outer end in any suitable manner, as for instance, by a hinged door 15.

Below the grate bars 11 is a chamber 16 corresponding in position to the usual ash pit but having a pan or substantially watertight fiooring 17 with upturned edges to collect and hold such liquid as may drip from the material in the combustion chamber. Access to this chamber 'may be gained through a port 18 here shown as being disposed directly beneath the chute or hopper 14 and having a somewhat similar outer hinged door 19.

In the end wall of the casing and preferably directly above the chute or hopper 1-1 is a downwardly inclined inwardly expanding passage 20 leading into the combustionv chamber at some little distance above the grate bars. Supported at the outer end of this passageway is a burner 21. This is of a type in which compressed air or steam operates to atomize or spray the liquid fuel in a substantially fan-shaped sheet down the passage 20. Such a burner is shown in my prior Patents No. 708,453 or No. 752,195. The atomizing fluid and the liquid fuel may be delivered to the burner through separate pipes 22 and 23 having appropriate regulating cocks, shutoff valves, etc. Below the burner 21 is a nozzle 2l for delivering combustion. supporting air at a lower pressure which mingles with the fan-shaped sheet'of sprayed liquid fuel and facilitates substantial complete combustion of the latter and the production ofthe maximum heat distributed over the upper surface of the material to be burned.

The top wail of the combustion chamber is shown as beingin the form of an arch 25 1and above this is a second arch 2G there being a substantially horizontal gas passage 27 between the two. This passage communicates with the combustion chamber by a verticai passage 28 at the end of the latter, opposite to the burner 21. This enters the combustion chamber at a point below the arch 25S and preferably approitimately midway between the arch and the grate bars. The passage 27 communicates with the stack 29 so that the gases of combustion may be conducted to the desired height or to any desired point away from the incinerator. As shown the stack is mounted at the end opposite to the burner 21 and communicates with the passage 27 by a passage 3() above the arch 26 and communicating with the latter by a vertical passage 31.

For insuring the complete combustion of all of the gases, vapors, and odor bearing distillates, arising from the material being burned, I provide a second burner 32 similar to the burner 21 but possibly of smaller capacity and below this burner is a nozzle 33 for ,deli vering combustion supporting air. This burner and nozzle deliver through a port 34 into the gas passage at some suitable point above the passage 28 and in advance of the stack 29. This burner preferably delivers along one of the horizontal passages and is shown at the end of the passage 27 opposite to the burner 21, but it is of course evident that it might be placed at the end of the passage 30 nearest to the burner 21 which latter arrangement might permit an easier control of both burners and the economical installation thereof. To permit ot' an inspection of the condition of the combustible gases beyond the burner 32 and permit the judging by the color of the tiame the necessity for more or less com? bustion supporting air or more or less heat, I provide a peephole 35 directly above the port 34 and above the burner 32. With some materials it is desirable to aid the partial drying of the material during thel burning of the latter by forcing air up throughy the material. This will also serve to keep the material ouen and the ingredients spaced apart and facilitate burning. For this purpose I have shown a fan blower 36 which may be driven from any suitable source of power, as for instance, from a drive pulley 37. From the blower a conduit 38 leads through the wall of the casing to the space beneath the grate bars 11.

lt is thought that the operation of my improved incinerator will be sufficiently obvious from the foregoing description to avoid the necessity of any further description of said operation. It will be noted that the control of the combustion supporting air through the nozzle 24 may be entirely independent of the control through the passage 33 so that both the combustion chamber and the ,passage 27 may each receive the proper amount of said air. It will also be .noted thatas the passages 27 and 30 are disposed above the combustion chamber the natural upward flow. of the hot gases from the incinerator is facilitated and that the second burner and air nozzle aids in securing the rapid upward movement of the gases to the stack. The stack itself may be relied upon to aid in producing the llesired draft. l

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. An incinerator includin acombustion chamber. a downwardly inc ined chute' at one end thereof, a downwardly inclined passage in said end above said chute` means for spraying liquid fuel down said last mentioned passage, means for delivering combustion supporting airv to said passage adjacent to said spraying means, and an outlet for gases of combustion at the opposite end.

2. A n incinerator including a combustion chamber, a substantially horizontal passage above the same and communicating therewith at one end, a burner delivering flame along said combustion chamber from the end opposite to said communication and toward said communication and a second burner for delivering ame along said passage at a point adjacent to said communication, and in the direction of the length of said passage. .Y -v

3. An incinerator including a combustion chamber, a pair of superposed passages thereabove, connected in series with said combustion chamber,means for delivering atomized liquid fuel and combustion supporting air to said combustion chamber, and independent means for delivering atomized liquid fuel and combustion supporting air to one of said passages.

Signed at New York city in the county of New York and State of New York this 3d day of May, A. D. 1918.

WILLIAM N. BEST. 

